CN106830990A - A kind of porous geological polymer/aeroge composite heat-insulated material and preparation method - Google Patents
A kind of porous geological polymer/aeroge composite heat-insulated material and preparation method Download PDFInfo
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- CN106830990A CN106830990A CN201710025180.2A CN201710025180A CN106830990A CN 106830990 A CN106830990 A CN 106830990A CN 201710025180 A CN201710025180 A CN 201710025180A CN 106830990 A CN106830990 A CN 106830990A
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- porous geological
- polymer
- geological polymer
- composite heat
- insulated material
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- 229920000642 polymer Polymers 0.000 title claims abstract description 164
- 239000002131 composite material Substances 0.000 title claims abstract description 120
- 239000000463 material Substances 0.000 title claims abstract description 118
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 91
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910002012 Aerosil® Inorganic materials 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 23
- 230000008569 process Effects 0.000 claims abstract description 15
- 239000002904 solvent Substances 0.000 claims abstract description 15
- 239000011159 matrix material Substances 0.000 claims abstract description 12
- 238000007664 blowing Methods 0.000 claims abstract description 10
- 239000006260 foam Substances 0.000 claims description 51
- 239000010881 fly ash Substances 0.000 claims description 50
- 239000000499 gel Substances 0.000 claims description 50
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 49
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 41
- 235000019353 potassium silicate Nutrition 0.000 claims description 40
- 150000001875 compounds Chemical class 0.000 claims description 35
- 239000000377 silicon dioxide Substances 0.000 claims description 30
- 239000012190 activator Substances 0.000 claims description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 26
- 239000011240 wet gel Substances 0.000 claims description 26
- 230000032683 aging Effects 0.000 claims description 24
- 238000006073 displacement reaction Methods 0.000 claims description 21
- 235000012239 silicon dioxide Nutrition 0.000 claims description 21
- 239000004088 foaming agent Substances 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 14
- 239000003607 modifier Substances 0.000 claims description 13
- GRVDJDISBSALJP-UHFFFAOYSA-N methyloxidanyl Chemical group [O]C GRVDJDISBSALJP-UHFFFAOYSA-N 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 11
- 102000004169 proteins and genes Human genes 0.000 claims description 11
- 108090000623 proteins and genes Proteins 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000011049 filling Methods 0.000 claims description 8
- 238000002386 leaching Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 8
- 238000007582 slurry-cast process Methods 0.000 claims description 8
- 238000013019 agitation Methods 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- 230000002378 acidificating effect Effects 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000004965 Silica aerogel Substances 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 3
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 claims 2
- 239000005051 trimethylchlorosilane Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 10
- 239000007789 gas Substances 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 235000019441 ethanol Nutrition 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 239000012774 insulation material Substances 0.000 description 6
- 239000004964 aerogel Substances 0.000 description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 239000010883 coal ash Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000000352 supercritical drying Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011494 foam glass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
- C04B38/106—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam by adding preformed foams
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
- C04B14/064—Silica aerogel
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- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/006—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mineral polymers, e.g. geopolymers of the Davidovits type
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
- C04B41/4922—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
- C04B41/4922—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane
- C04B41/4933—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane containing halogens, i.e. organohalogen silanes
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
- C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
- C04B41/4922—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane
- C04B41/4944—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as monomers, i.e. as organosilanes RnSiX4-n, e.g. alkyltrialkoxysilane, dialkyldialkoxysilane containing atoms other than carbon, hydrogen, oxygen, silicon, alkali metals or halogens, e.g. N-silyldisilazane: Image
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/62—Coating or impregnation with organic materials
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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Abstract
The invention discloses a kind of porous geological polymer/aeroge composite heat-insulated material, including porous geological polymer and aerosil；Wherein porous geological polymer is matrix, and aerosil forms porous geological polymer/aeroge composite heat-insulated material for obturator is embedded in the hole of porous geological polymer；The invention also discloses a kind of preparation method of porous geological polymer/aeroge composite heat-insulated material, use physical blowing method to prepare porous geological polymer and soak damp gel process with colloidal sol and prepare porous geological polymer/aeroge composite heat-insulated material.The present invention has taken into account low high intensity, high temperature resistant, unit weight and the good advantage of low heat conductivity, water resistance, and satisfaction is performance requirement of the practical application to heat-barrier material, and solvent and modifying agent consumption are few in preparation process, and process is easy to control, can be continuously produced.
Description
Technical field
The present invention relates to aeroge composite heat-insulated material technical field, more particularly to a kind of porous geological polymer/airsetting
Glue composite heat-insulated material and preparation method.
Background technology
Though the insulation material insulation of China's building heat preservation in the market is good, easy firing simultaneously produces a large amount of dense smokes and poison gas, and
The inorganic heat insulation material resource consumption such as concrete, foam glass, rock cotton board is big；With the alumina-silica material system such as flyash, kaolin
Standby porous geological polymer has the good characteristic such as high intensity, high temperature resistant, fire prevention, corrosion-resistant, has further expanded building neck
The selection of the non-ignitable insulation material in domain, but its relative thermal conductivity factor is higher, it is mostly more than 0.1 and not water-fast.
Aerosil is a kind of Amorphous solids material with very high porosities and nano-pore, in normal temperature and pressure
Thermal conductivity factor is 0.012-0.016W/ (mK) in air, less than the 0.024W/ (mK) of still air, while having stronger
Hydrophobicity, with the Maximum Contact angle of water up to 158 °, therefore it has very extensive prospect of the application.Patent
CN201310301788.5 provides a kind of preparation method of the enhanced silicon dioxide silica aerogel composite material of silicon carbide fibre felt,
Static Spinning silicon carbide ceramic fiber felt is immersed in aeroge colloidal sol, the enhanced aerosil of silicon carbide fibre felt is obtained
Composite.Although its composite density is low, specific surface area is big, thermal conductivity is low, it uses supercritical drying, cost compared with
High, security is poor, apparatus and process is complicated；Patent CN201510236100.9 provides a kind of with inorfil as reinforcing material
The preparation method of composite aerogel, the method mainly uses Infiltration Technics to immerse in inorfil colloidal sol, then by modified
Modify and composite is obtained by supercritical drying.But inorfil, and aeroge combined with the filling of fiber make it is multiple
The bond strength for closing aerogel material is limited；Patent CN200910071845.9 provides a kind of ceramic aerogel, by gel
The method that casting prepares ceramic aerogel.But because ceramics are not water-fast, and heat insulating ability is poor, unit weight is high, high cost, yield
High temperature, high energy consumption, high pollution are needed in low, production process.
In recent years, understood in depth with to porous geological polymer, its is non-sintered with unique three-dimensional silica aluminium net shape knot
Structure attracts increasing scholar and starts to be studied with regard to this problem.There is presently no by porous geological polymer application
Report in aerogel composite.
The content of the invention
The present invention proposes a kind of porous geological polymer/aeroge composite heat-insulated material and preparation method, with porous
Matter polymer is matrix, and aerosil is obturator, using colloidal sol-leaching pool-gel method by aerosil
Formation porous geological polymer/aeroge composite heat-insulated material in the hole of porous geological polymer is embedded in, the present invention takes into account
The advantage that high intensity, high temperature resistant, unit weight are low and low heat conductivity, water resistance are good, satisfaction is practical application to heat-barrier material
Performance requirement, solvent and modifying agent consumption are few in preparation process, and process is easy to control, can be continuously produced.
A kind of porous geological polymer/aeroge composite heat-insulated material proposed by the present invention, including porous geological polymer
And aerosil；Wherein porous geological polymer be matrix, aerosil for obturator is embedded in porously
Porous geological polymer/aeroge composite heat-insulated material is formed in the hole of matter polymer.
Preferably, aerosil is filled to the physics that is filled with of the hole of porous geological polymer, porous geological
Do not have to chemically react between polymer and aerosil.
Preferably, porous geological polymer raw material includes：Flyash, alkali-activator, foam.
Preferably, flyash, alkali-activator, the weight ratio of foam are 8：6-11：6-8.
Preferably, flyash, alkali-activator, the weight ratio of foam are 8：7：7.
Preferably, alkali-activator is waterglass.
Preferably, the modulus of waterglass is 3.3-3.8, and U.S. waviness is 30-35.
Preferably, the modulus of waterglass is 3.55, and U.S. waviness is 32.
Preferably, porous geological polymer raw material also includes water, and the weight ratio of flyash and water is 4：0-1.
Preferably, Shui Wei cities are provided from water.
Preferably, foam is obtained by physical blowing.
Preferably, foam is added water by foaming agent and is obtained through mechanical agitation.
Preferably, foaming agent is protein foaming agent.
Preferably, aerosil is poly- to porous geological in porous geological polymer/aeroge composite heat-insulated material
The filling rate of compound hole is 88-92%.
Preferably, porous geological polymer/aeroge composite heat-insulated material carried out surface be modified.
Preferably, surface is carried out to porous geological polymer/aeroge composite heat-insulated material using surface modifier to be modified.
Preferably, surface modifier is hexa methyl oxy disilicane, HMDS or trim,ethylchlorosilane.
Preferably, surface modifier is hexa methyl oxy disilicane.
Preferably, flyash is any one in commercially available one-level, second class powered coal ash or two kinds of any mixtures.
A kind of preparation method of porous geological polymer/aeroge composite heat-insulated material proposed by the present invention, including it is as follows
Step：
It is prepared by S1, porous geological polymer：
Flyash, alkali-activator and water are well mixed, foam is added, stirred under the conditions of rotating speed is 650-800rpm
3-5min obtains foamed slurry, foamed slurry casting solidifies at room temperature, the demoulding, and drying maintenance at 45-65 DEG C obtains
Porous geological polymer；
It is prepared by S2, silicon dioxide gel：
Industrial waterglass is added water mixing, adds acidic catalyst to be hydrolyzed reaction, obtain silicon dioxide gel；
It is prepared by S3, porous geological polymer/aeroge composite heat-insulated material：
Gel：Ammoniacal liquor regulation pH to 4-5 is added in the silicon dioxide gel that S2 is obtained, was put before it will form gel
Entering porous geological polymer carries out leaching pool, and compound wet gel material is obtained through gel reaction；
Aging/solvent displacement：Compound wet gel material is placed in place at room temperature it is aging, will be aging after compound wet gel
Material enters line replacement in being put into absolute ethyl alcohol, and displacement temperature is 40-50 DEG C, and time swap is 6-10h, and displacement number of times is 1-2 times,
It is then placed in n-hexane being carried out under air-proof condition twice replaced, twice replaced temperature is 40-50 DEG C, and the twice replaced time is 7-
9h, twice replaced number of times is 2-3 times, obtains composite；
Surface is modified：To the mixed solution that surface modifier and n-hexane are added in composite, sealing, at 40-50 DEG C
Lower insulation 10-14h obtains modified composite material；
Classification drying：In atmospheric conditions, modified composite material is entered under the conditions of 60-80 DEG C and 110-130 DEG C successively
Row is dried to obtain porous geological polymer/aeroge composite heat-insulated material.
Preferably, in S1, foam is obtained by physical blowing, and concrete operations are：Protein foaming agent is added water carries out machinery
Stir and obtain foam, the weight ratio of protein foaming agent and water is 1：8-12.
Preferably, in S1, flyash, alkali-activator, the weight ratio of foam are 8：6-11：6-8.
Preferably, in S1, flyash, alkali-activator, the weight ratio of foam are 8：7：7.
Preferably, in S1, alkali-activator is waterglass.
Preferably, the modulus of waterglass is 3.3-3.8, and U.S. waviness is 30-35.
Preferably, the modulus of waterglass is 3.55, and U.S. waviness is 32.
Preferably, in S1, rotating speed is 700rpm, and mixing time is 4min.
Preferably, in S1, the cold curing time is more than 24h.
Preferably, in S1, curing temperature is dried for 55 DEG C.
Preferably, in S1, curing time is dried for 24h.
Preferably, in S2, the mol ratio of industrial waterglass and water is 1：2-4.
Preferably, in S2, industrial waterglass is general industry sodium silicate, and modulus is 3.5-3.7, and U.S. waviness is
26.6%.
Preferably, in S2, the mol ratio of industrial waterglass and water is 1：3.
Preferably, in S2, industrial waterglass adds water after mixing 5-15min and adds acidic catalyst.
Preferably, in S2, industrial waterglass adds water after mixing 10min and adds acidic catalyst.
Preferably, in S2, acidic catalyst is hydrochloric acid, phosphoric acid or hydrofluoric acid.
Preferably, concentration of hydrochloric acid is 36-38wt%, and phosphoric acid concentration is 84-86wt%, and hydrofluoric acid concentration is 40-70wt%.
Preferably, in S3, in gel process, adjusted in pH and porous geological polymer is put into the 4-5min to 4-5.
Preferably, in S3, in gel process, the gel reaction time is 0.5-1.5h.
Preferably, in S3, it is 45 DEG C to replace temperature in aging/solvent replacement process, in absolute ethyl alcohol, and time swap is
8h。
Preferably, in S3, in aging/solvent replacement process, twice replaced temperature is 45 DEG C in n-hexane.During secondary Pin
Between be 8h.
Preferably, in S3, in aging/solvent replacement process, the addition of ethanol and n-hexane is compound wet solidifying to flood
Glue material 1-2cm.
Preferably, surface modifier is hexa methyl oxy disilicane, HMDS or trim,ethylchlorosilane.
Preferably, surface modifier is hexa methyl oxy disilicane.
Preferably, in S3, in Process of Surface Modification, the volume ratio of hexa methyl oxy disilicane and n-hexane in mixed solution
It is 1:1.
Preferably, in S3, in Process of Surface Modification, the consumption of mixed solution is 2 times of composite volume.
Preferably, in S3, in Process of Surface Modification, 12h is incubated at 45 DEG C.
Preferably, in S3, in drying process is classified, modified composite material first dries 2-4h, Ran Hou at 60-80 DEG C
6-8h is dried at a temperature of 110-130 DEG C of temperature.
Preferably, in S3, in drying process is classified, modified composite material first dries 3h at 70 DEG C, then in temperature
7h is dried at a temperature of 120 DEG C.
The present invention utilizes colloidal sol-dipping-gel method at normal temperatures and pressures, and aerosil insertion porous geological is gathered
In compound hole, the composite heat-insulated material with micro-nano pore structure is obtained, be silicon source forerunner with cheap industrial waterglass
Body, prepares colloidal sol, and porous geological polymer is prepared using physical blowing method, directly adds foam to the acid-base property of slurry without spy
Foamed slurry that is different to require, being stablized in the case of without addition blowing promotor and foam stabilizer, reduces production cost, carries
The mechanical property of porous geological polymer high, directly addition foam cause that the curing rate of geo-polymer is moderate, fitted
In porosity, be conducive to the filling of aeroge, improve the adhesion of aerosil and porous geological polymer, carry
The high physical property and mechanical property of composite heat-insulated material；After being replaced using ethanol solution and solvent hexane solvent,
Wet gel carries out surface in the mixed solution of hexa methyl oxy disilicane and n-hexane and is modified, and improves the anti-of composite heat-insulated material
Aqueous energy, water consumption during physical blowing is reduced by the order of addition of feed change, and constant pressure and dry is obtained compound heat-insulation
Material, reduces production cost.Raw material of the present invention is cheap, easily obtains, and solvent and modifying agent consumption are few in preparation process, entirely
Process is easy to control, can be continuously produced.
The present invention has by following advantage compared with prior art：
(1) aerosil is added in porous geological polymer, wherein geo-polymer is used as compound heat-insulation material
The skeleton of material, plays enhancing supporting role, and thus the primary intensity of composite undertakes, and improves the power of composite heat-insulated material
Learn intensity；Aerosil relies on its superior heat-proof quality, and heat-blocking action is played in the composite, and the present invention takes into account
The physical property and mechanical property of composite heat-insulated material.
(2) porous geological polymer is prepared using physical blowing method, saves sintering process, greatly reduce low cost, had
There are low energy consumption, environmental protection.
(3) slurry improves foam to the susceptibility of soda acid during physical blowing method reduces geo-polymer preparation process
The stability of slurry, further increases the mechanical strength of porous geological polymer.
(4) it is primary raw material using industrial wastes such as waste flyash, waterglass, reduces production cost, improves economical
Benefit, is conducive to industrialization.
Brief description of the drawings
Fig. 1 is porous geological polymer/aeroge composite heat-insulated material preparation technology flow chart；
Fig. 2 is reference examples porous geological polymeric material shape appearance figure；
Fig. 3 is porous geological polymer/aeroge composite heat-insulated material shape appearance figure.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, Fig. 1 is porous geological polymer/aeroge composite heat-insulated material preparation technology flow
Figure, Fig. 2 is the porous geological polymer morphology figure for being not added with aeroge, and Fig. 3 is porous geological polymer/aeroge compound heat-insulation
Material morphology figure.
Embodiment 1
A kind of porous geological polymer/aeroge composite heat-insulated material, including porous geological polymer and silica gas
Gel；Wherein porous geological polymer is matrix, and aerosil is embedded in the hole of porous geological polymer for obturator
Porous geological polymer/aeroge composite heat-insulated material is formed in gap.
Embodiment 2
A kind of porous geological polymer/aeroge composite heat-insulated material, including porous geological polymer and silica gas
Gel；Wherein porous geological polymer is matrix, and aerosil is embedded in the hole of porous geological polymer for obturator
Porous geological polymer/aeroge composite heat-insulated material is formed in gap；Wherein, porous geological polymer raw material includes：Flyash,
Alkali-activator, foam.
Embodiment 3
A kind of porous geological polymer/aeroge composite heat-insulated material, including porous geological polymer and silica gas
Gel；Wherein porous geological polymer is matrix, and aerosil is embedded in the hole of porous geological polymer for obturator
Porous geological polymer/aeroge composite heat-insulated material is formed in gap；Wherein, porous geological polymer raw material includes：Flyash,
Alkali-activator, foam, water, flyash, alkali-activator, the weight ratio of foam are 8：6：6, the weight ratio of flyash and water is
4：1.
Embodiment 4
A kind of porous geological polymer/aeroge composite heat-insulated material, including porous geological polymer and silica gas
Gel；Wherein porous geological polymer is matrix, and aerosil is embedded in the hole of porous geological polymer for obturator
Porous geological polymer/aeroge composite heat-insulated material is formed in gap；Wherein, porous geological polymer raw material includes：Flyash,
Alkali-activator, foam, water, flyash, alkali-activator, the weight ratio of foam are 8：7：7, the weight ratio of flyash and water is
8：1, foam is obtained by physical blowing；
Porous geological polymer/aeroge composite heat-insulated material is comprised the following steps：
It is prepared by S1, porous geological polymer：
Flyash, alkali-activator and water are well mixed, foam is added, 5min is stirred under the conditions of rotating speed is 650rpm
Foamed slurry is obtained, foamed slurry casting is solidified at room temperature, the demoulding, drying maintenance at 45 DEG C obtains porous geological
Polymer；
It is prepared by S2, silicon dioxide gel：
Industrial waterglass is added water mixing, add acidic catalyst adjust pH toBe hydrolyzed reaction, obtains dioxy
SiClx colloidal sol；
It is prepared by S3, porous geological polymer/aeroge composite heat-insulated material：
Gel：Ammoniacal liquor regulation pH to 4 is added in the silicon dioxide gel that S2 is obtained, was put into before it will form gel
Porous geological polymer carries out leaching pool, and compound wet gel material is obtained through gel reaction；
Aging/solvent displacement：Compound wet gel material is placed in place at room temperature it is aging, will be aging after compound wet gel
Material enters line replacement in being put into absolute ethyl alcohol, and displacement temperature is 40 DEG C, and time swap is 6h, and displacement number of times is 2 times, is then placed in
Carry out twice replaced in n-hexane under air-proof condition, twice replaced temperature is 40 DEG C, and the twice replaced time is 7h, twice replaced time
Number is 3 times, obtains composite；
Surface is modified：To the mixed solution that surface modifier and n-hexane are added in composite, sealing is protected at 40 DEG C
Warm 14h obtains modified composite material；
Classification drying：In atmospheric conditions, modified composite material is dried under the conditions of 60 DEG C and 110 DEG C successively
To porous geological polymer/aeroge composite heat-insulated material.
Embodiment 5
Reference picture 1, a kind of porous geological polymer/aeroge composite heat-insulated material, including porous geological polymer and two
Silica aerogel；Wherein porous geological polymer is matrix, and aerosil gathers for obturator is embedded in porous geological
Form porous geological polymer/aeroge composite heat-insulated material in the hole of compound, porous geological polymer/aeroge it is compound every
Aerosil is 88% to the filling rate of porous geological polymer hole in hot material, wherein, porous geological polymer
Raw material includes：Flyash, waterglass, foam, water, flyash, waterglass, the weight ratio of foam are 8：11：8, flyash and water
Weight ratio be 8：1；Flyash is commercially available one-level, and the modulus of waterglass is 3.3, and U.S. waviness is 30, and foam is added water by foaming agent
It is obtained through mechanical agitation；
Porous geological polymer/aeroge composite heat-insulated material is comprised the following steps：
It is prepared by S1, porous geological polymer：
Flyash, alkali-activator and water are well mixed, foam is added, 3min is stirred under the conditions of rotating speed is 800rpm
Foamed slurry is obtained, by foamed slurry casting, more than 24h is solidified at room temperature, the demoulding dries maintenance at 65 DEG C and obtains many
Hole geo-polymer；
It is prepared by S2, silicon dioxide gel：
Industrial waterglass is added water and mixes 5min, the mol ratio of industrial waterglass and water is 1：2, add hydrochloric acid to carry out
Hydrolysis, obtains silicon dioxide gel；
It is prepared by S3, porous geological polymer/aeroge composite heat-insulated material：
Gel：Ammoniacal liquor regulation pH to 4 is added in the silicon dioxide gel that S2 is obtained, porous geological is put into after stirring 1min
Polymer carries out leaching pool, and compound wet gel material is obtained after gel reaction 0.5h；
Aging/solvent displacement：Compound wet gel material is placed in place at room temperature it is aging, will be aging after compound wet gel
Material enters line replacement in being put into absolute ethyl alcohol, and displacement temperature is 50 DEG C, and time swap is 10h, and displacement number of times is 1 time, Ran Houfang
To enter carried out under air-proof condition in n-hexane twice replaced, twice replaced temperature is 50 DEG C, and the twice replaced time is 9h, twice replaced
Number of times is 2 times, and the addition of ethanol and n-hexane obtains composite to flood compound wet gel material 1cm；
Surface is modified：To the mixed solution that HMDS and n-hexane are added in composite, sealing, at 50 DEG C
Lower insulation 10h obtains modified composite material；
Classification drying：In atmospheric conditions, modified composite material is first dried into 2h at 80 DEG C, then in 130 DEG C of temperature
At a temperature of dry 6h and obtain porous geological polymer/aeroge composite heat-insulated material.
Embodiment 6
A kind of porous geological polymer/aeroge composite heat-insulated material, including porous geological polymer and silica gas
Gel；Wherein porous geological polymer is matrix, and aerosil is embedded in the hole of porous geological polymer for obturator
Porous geological polymer/aeroge composite heat-insulated material is formed in gap, in porous geological polymer/aeroge composite heat-insulated material
Aerosil is 92% to the filling rate of porous geological polymer hole, wherein, porous geological polymer raw material includes：
Flyash, waterglass, foam, water, flyash, waterglass, the weight ratio of foam are 4：5：4, the weight ratio of flyash and water is
8：1；Flyash is commercially available one-level, second class powered coal ash mixture, and the modulus of waterglass is 3.8, and U.S. waviness is provided from for 35, Shui Wei cities
Water, foam is added water by protein foaming agent and is obtained through mechanical agitation；
Porous geological polymer/aeroge composite heat-insulated material is comprised the following steps：
It is prepared by S1, porous geological polymer：
Flyash, alkali-activator and water are well mixed, foam is added, 3min is stirred under the conditions of rotating speed is 800rpm
Foamed slurry is obtained, by foamed slurry casting, more than 24h is solidified at room temperature, the demoulding dries maintenance at 55 DEG C and obtains many
Hole geo-polymer；
It is prepared by S2, silicon dioxide gel：
Industrial waterglass is added water and mixes 15min, the mol ratio of industrial waterglass and water is 1：3, add phosphoric acid to enter
Row hydrolysis, obtains silicon dioxide gel；
It is prepared by S3, porous geological polymer/aeroge composite heat-insulated material：
Gel：Ammoniacal liquor regulation pH to 4.2 is added in the silicon dioxide gel that S2 is obtained, is put into porously after stirring 2min
Matter polymer carries out leaching pool, and compound wet gel material is obtained after gel reaction 1.5h；
Aging/solvent displacement：Compound wet gel material is placed in place at room temperature it is aging, will be aging after compound wet gel
Material enters line replacement in being put into absolute ethyl alcohol, and displacement temperature is 45 DEG C, and time swap is 8h, and displacement number of times is 2 times, is then placed in
Carry out twice replaced in n-hexane under air-proof condition, twice replaced temperature is 45 DEG C, and the twice replaced time is 8h, twice replaced time
Number is 3 times, and the addition of ethanol and n-hexane obtains composite to flood compound wet gel material 2cm；
Surface is modified：It is close to the mixed solution that volume fraction is trim,ethylchlorosilane and n-hexane is added in composite
Envelope, insulation 12h obtains modified composite material at 45 DEG C；
Classification drying：In atmospheric conditions, modified composite material is first dried into 4h at 60 DEG C, then in 110 DEG C of temperature
At a temperature of dry 8h and obtain porous geological polymer/aeroge composite heat-insulated material.
Embodiment 7
A kind of porous geological polymer/aeroge composite heat-insulated material, including porous geological polymer and silica gas
Gel；Wherein porous geological polymer is matrix, and aerosil is embedded in the hole of porous geological polymer for obturator
Porous geological polymer/aeroge composite heat-insulated material is formed in gap, in porous geological polymer/aeroge composite heat-insulated material
Aerosil is 90% to the filling rate of porous geological polymer hole, wherein, porous geological polymer raw material includes：
Flyash, waterglass, foam, water, flyash, waterglass, the weight ratio of foam are 8：7：7, the weight ratio of flyash and water is
8：1；Flyash is commercially available one-level, second class powered coal ash mixture, and the modulus of waterglass is 3.55, and U.S. waviness is supplied for 32, Shui Wei cities
Protein foaming agent is added water and carries out mechanical agitation and obtain foam by running water, foam, and the weight ratio of protein foaming agent and water is
1：8；
Porous geological polymer/aeroge composite heat-insulated material is comprised the following steps：
It is prepared by S1, porous geological polymer：
Flyash, alkali-activator and water are well mixed, foam is added, 4min is stirred under the conditions of rotating speed is 700rpm
Foamed slurry is obtained, by foamed slurry casting, more than 24h is solidified at room temperature, the demoulding dries maintenance at 55 DEG C and obtains many
Hole geo-polymer；
It is prepared by S2, silicon dioxide gel：
Industrial waterglass is added water and mixes 15min, the mol ratio of industrial waterglass and water is 1：4, add phosphoric acid to enter
Row hydrolysis, obtains silicon dioxide gel；
It is prepared by S3, porous geological polymer/aeroge composite heat-insulated material：
Gel：Ammoniacal liquor regulation pH to 4.5 is added in the silicon dioxide gel that S2 is obtained, is put into porously after stirring 4min
Matter polymer carries out leaching pool, and compound wet gel material is obtained after gel reaction 0.5h；
Aging/solvent displacement：Compound wet gel material is placed in place at room temperature it is aging, will be aging after compound wet gel
Material enters line replacement in being put into absolute ethyl alcohol, and displacement temperature is 45 DEG C, and time swap is 8h, and displacement number of times is 2 times, is then placed in
Carry out twice replaced in n-hexane under air-proof condition, twice replaced temperature is 45 DEG C, and the twice replaced time is 8h, twice replaced time
Number is 3 times, and the addition of ethanol and n-hexane obtains composite to flood compound wet gel material 1.5cm；
Surface is modified：It is close to the hexa methyl oxy disilicane hexane solution that volume fraction is 50% is added in composite
Envelope, insulation 12h obtains modified composite material at 45 DEG C；
Classification drying：In atmospheric conditions, modified composite material is first dried into 3h at 70 DEG C, then in 120 DEG C of temperature
At a temperature of dry 7h and obtain porous geological polymer/aeroge composite heat-insulated material.
Embodiment 8
A kind of porous geological polymer/aeroge composite heat-insulated material, including porous geological polymer and silica gas
Gel；Wherein porous geological polymer is matrix, and aerosil is embedded in the hole of porous geological polymer for obturator
Porous geological polymer/aeroge composite heat-insulated material is formed in gap, in porous geological polymer/aeroge composite heat-insulated material
Aerosil is 90% to the filling rate of porous geological polymer hole, wherein, porous geological polymer raw material includes：
Flyash, waterglass, foam, water, flyash, waterglass, the weight ratio of foam are 8：7：7, the weight ratio of flyash and water is
8：1；Flyash is commercially available one-level, second class powered coal ash mixture, and the modulus of waterglass is 3.55, and U.S. waviness is supplied for 32, Shui Wei cities
Protein foaming agent is added water and carries out mechanical agitation and obtain foam by running water, foam, and the weight ratio of protein foaming agent and water is
1：12；
Porous geological polymer/aeroge composite heat-insulated material is comprised the following steps：
It is prepared by S1, porous geological polymer：
Flyash, alkali-activator and water are well mixed, foam is added, 4min is stirred under the conditions of rotating speed is 700rpm
Foamed slurry is obtained, by foamed slurry casting, more than 24h is solidified at room temperature, the demoulding dries maintenance at 55 DEG C and obtains many
Hole geo-polymer；
It is prepared by S2, silicon dioxide gel：
Industrial waterglass is added water and mixes 15min, the mol ratio of industrial waterglass and water is 1：2, add phosphoric acid to enter
Row hydrolysis, obtains silicon dioxide gel；
It is prepared by S3, porous geological polymer/aeroge composite heat-insulated material：
Gel：Ammoniacal liquor regulation pH to 4.5 is added in the silicon dioxide gel that S2 is obtained, is put into porously after stirring 4min
Matter polymer carries out leaching pool, and compound wet gel material is obtained after gel reaction 0.5h；
Aging/solvent displacement：Compound wet gel material is placed in place at room temperature it is aging, will be aging after compound wet gel
Material enters line replacement in being put into absolute ethyl alcohol, and displacement temperature is 45 DEG C, and time swap is 8h, and displacement number of times is 2 times, is then placed in
Carry out twice replaced in n-hexane under air-proof condition, twice replaced temperature is 45 DEG C, and the twice replaced time is 8h, twice replaced time
Number is 3 times, and the addition of ethanol and n-hexane obtains composite to flood compound wet gel material 1.5cm；
Surface is modified：It is close to the hexa methyl oxy disilicane hexane solution that volume fraction is 50% is added in composite
Envelope, insulation 12h obtains modified composite material at 45 DEG C；
Classification drying：In atmospheric conditions, modified composite material is first dried into 3h at 70 DEG C, then in 120 DEG C of temperature
At a temperature of dry 7h and obtain porous geological polymer/aeroge composite heat-insulated material.
Porous geological polymer/aeroge composite heat-insulated material shape appearance figure is as shown in Figure 3 obtained in embodiment 8.
Reference examples
A kind of porous geological polymeric material, its raw material includes：Flyash, waterglass, foam, water, flyash, water glass
Glass, the weight ratio of foam are 8：7：7, the weight ratio of flyash and water is 8：1；
Porous geological polymeric material is comprised the following steps：
Flyash, alkali-activator and water are well mixed, foam is added, 4min is stirred under the conditions of rotating speed is 700rpm
Foamed slurry is obtained, by foamed slurry casting, more than 24h is solidified at room temperature, the demoulding dries maintenance at 55 DEG C and obtains many
Hole geology polymer material.
Porous geological polymeric material shape appearance figure is as shown in Figure 2 obtained in reference examples.
Porous geological polymer/aeroge composite heat-insulated material is obtained to embodiment 4-8 carries out physical property and mechanical property
Can test and be contrasted with reference examples, test result is as shown in the table：
As can be seen from the table, the composite heat-insulated material that more empty geo-polymer is formed with aeroge has good resistance to compression
Intensity, reaches as high as 4.32MPa, and general porous polymer intensity is 2.5MPa or so, and composite heat-insulated material possesses relatively low
Thermal conductivity factor, illustrate that the thermal and insulating performance of composite greatly improved after aeroge and geology porous polymer are compound,
Unit weight of the invention and water absorption rate are smaller simultaneously, have the advantages that quality is light, waterproof, the practical application of the heat-barrier material of satisfaction
It is required that.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (10)
1. a kind of porous geological polymer/aeroge composite heat-insulated material, it is characterised in that including porous geological polymer and two
Silica aerogel；Wherein porous geological polymer is matrix, and aerosil gathers for obturator is embedded in porous geological
Porous geological polymer/aeroge composite heat-insulated material is formed in the hole of compound.
2. porous geological polymer/aeroge composite heat-insulated material according to claim 1, it is characterised in that porously
Matter polymer raw material includes：Flyash, alkali-activator, foam；
Preferably, flyash, alkali-activator, the weight ratio of foam are 8：6-11：6-8；
Preferably, flyash, alkali-activator, the weight ratio of foam are 8：7：7；Preferably, alkali-activator is waterglass.
3. porous geological polymer/aeroge composite heat-insulated material according to claim 2, it is characterised in that porously
Matter polymer raw material also includes water, and the weight ratio of flyash and water is 4：0-1.
4. porous geological polymer/aeroge composite heat-insulated material according to claim 2, it is characterised in that foam by
Foaming agent adds water and is obtained through mechanical agitation；Preferably, foaming agent is protein foaming agent.
5. porous geological polymer/aeroge composite heat-insulated material according to claim 1, it is characterised in that porously
Aerosil is 88- to the filling rate of porous geological polymer hole in matter polymer/aeroge composite heat-insulated material
92%.
6. porous geological polymer/aeroge composite heat-insulated material according to claim 1, it is characterised in that porously
Matter polymer/aeroge composite heat-insulated material has carried out surface and has been modified；
Preferably, surface is carried out to porous geological polymer/aeroge composite heat-insulated material using surface modifier to be modified；It is preferred that
Ground, surface modifier is hexa methyl oxy disilicane, HMDS or trim,ethylchlorosilane；Preferably, surface modifier
It is hexa methyl oxy disilicane.
7. a kind of preparation method of porous geological polymer/aeroge composite heat-insulated material, it is characterised in that including following step
Suddenly：
It is prepared by S1, porous geological polymer：
Flyash, alkali-activator and water are well mixed, foam is added, 3- is stirred under the conditions of rotating speed is 650-800rpm
5min obtains foamed slurry, foamed slurry casting solidifies at room temperature, the demoulding, maintenance is dried at 45-65 DEG C and obtains many
Hole geo-polymer；
It is prepared by S2, silicon dioxide gel：
Industrial waterglass is added water mixing, adds acidic catalyst to be hydrolyzed reaction, obtain silicon dioxide gel；
It is prepared by S3, porous geological polymer/aeroge composite heat-insulated material：
Gel：Ammoniacal liquor regulation pH to 4-5 is added in the silicon dioxide gel that S2 is obtained, was put into before it will form gel many
Hole geo-polymer carries out leaching pool, and compound wet gel material is obtained through gel reaction；
Aging/solvent displacement：Compound wet gel material is placed in place at room temperature it is aging, will be aging after compound wet gel material
It is put into absolute ethyl alcohol and enters line replacement, displacement temperature is 40-50 DEG C, and time swap is 6-10h, displacement number of times is 1-2 times, then
Being put into n-hexane under air-proof condition carries out twice replaced, and twice replaced temperature is 40-50 DEG C, and the twice replaced time is 7-9h,
Twice replaced number of times is 2-3 times, obtains composite；
Surface is modified：To the mixed solution that surface modifier and n-hexane are added in composite, sealing is protected at 40-50 DEG C
Warm 10-14h obtains modified composite material；
Classification drying：In atmospheric conditions, modified composite material is done under the conditions of 60-80 DEG C and 110-130 DEG C successively
It is dry to obtain porous geological polymer/aeroge composite heat-insulated material.
8. the preparation method of porous geological polymer/aeroge composite heat-insulated material according to claim 7, its feature exists
In in S1, foam is obtained by physical blowing, and concrete operations are：Protein foaming agent is added water to carry out mechanical agitation and obtains foam,
The weight ratio of protein foaming agent and water is 1：8-12.
9. the preparation method of porous geological polymer/aeroge composite heat-insulated material according to claim 7, its feature exists
In in S1, flyash, alkali-activator, the weight ratio of foam are 8：6-11：6-8；
Preferably, in S1, flyash, alkali-activator, the weight ratio of foam are 8：7：7；
Preferably, in S1, alkali-activator is waterglass；
Preferably, in S1, the weight ratio of flyash and water is 4：0-1.
10. the preparation method of porous geological polymer/aeroge composite heat-insulated material according to claim 7, its feature
It is that in S3, in Process of Surface Modification, surface modifier is hexa methyl oxy disilicane, HMDS or trimethyl
Chlorosilane；Preferably, surface modifier is hexa methyl oxy disilicane.
Priority Applications (1)
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| CN107344863A (en) * | 2017-07-26 | 2017-11-14 | 浙江大学 | A kind of geo-polymer porous insulation material based on flyash and preparation method thereof |
| CN108314464A (en) * | 2018-02-27 | 2018-07-24 | 南京工业大学 | Method for preparing foam glass-aerogel heat insulation material |
| CN109265734A (en) * | 2018-09-05 | 2019-01-25 | 哈尔滨工程大学 | A method of foam of polymers anti-flammability is improved by aerosil thermal insulation fire-proof layer |
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| CN108314464A (en) * | 2018-02-27 | 2018-07-24 | 南京工业大学 | Method for preparing foam glass-aerogel heat insulation material |
| CN109265734A (en) * | 2018-09-05 | 2019-01-25 | 哈尔滨工程大学 | A method of foam of polymers anti-flammability is improved by aerosil thermal insulation fire-proof layer |
| CN109485315A (en) * | 2018-12-14 | 2019-03-19 | 深圳市地聚科技有限公司 | A kind of SiO2Aeroge/porous ground polymers composite insulation boards preparation method |
| CN109701494A (en) * | 2018-12-28 | 2019-05-03 | 青岛海尔股份有限公司 | Aerogel composite and preparation method thereof |
| CN110395964A (en) * | 2019-06-12 | 2019-11-01 | 段耀祖 | A kind of dispersion resistance runway road surface repair materials |
| CN111233379A (en) * | 2020-02-11 | 2020-06-05 | 中南大学 | Foamed geopolymer/aerogel composite heat-insulating material and preparation method thereof |
| CN111545136A (en) * | 2020-04-05 | 2020-08-18 | 北京化工大学 | Preparation method and application of self-suspended polymer aerogel with efficient photothermal conversion |
| CN112390576A (en) * | 2020-11-11 | 2021-02-23 | 武汉工程大学 | Potassium titanate whisker modified high-strength high-hydrophobicity porous geopolymer thermal insulation material and preparation method and application thereof |
| CN112852196A (en) * | 2021-01-11 | 2021-05-28 | 中广核研究院有限公司 | Aerogel coating and preparation method thereof, and aerogel coating and preparation method thereof |
| CN114853395A (en) * | 2022-04-18 | 2022-08-05 | 武汉大学 | Aerogel reinforced geopolymer foam concrete material and preparation method thereof |
| CN114806240A (en) * | 2022-05-30 | 2022-07-29 | 中广核研究院有限公司 | Heat-insulating coating and preparation method and application thereof |
| CN114772992A (en) * | 2022-06-22 | 2022-07-22 | 河北工业大学 | Light heat-insulating geopolymer containing modified aerogel and preparation method thereof |
| CN114772992B (en) * | 2022-06-22 | 2022-09-06 | 河北工业大学 | Light heat-insulating geopolymer containing modified aerogel and preparation method thereof |
| CN117602892A (en) * | 2023-12-06 | 2024-02-27 | 东北农业大学 | Light nano modified microbead reinforced geopolymer foam concrete and preparation method thereof |
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